20804638 is an even 8-digits composite number following 20804637
and preceding 20804639 . In scientific notation, it is written as 2.0804638 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 10402318 positive integers (up to 20804638) that are relatively prime to 20804638.
20804638 has 4 divisors, whose sum is 31206960
The reverse of 20804638 is 83640802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred four thousand six hundred thirty-eight
Scientific notation
2.0804638 × 10^7
Engineering notation
2.0804638 × 10^6
Prime Factorization
2 × 10402319
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20804638
Product of the distinct prime numbers
The prime factorization of 20804638 is 2 × 10402319.
Since it has a total of 2 prime factors.
8 , 10 , 74 , 42 , 180 , 760 , 6666 , 8895 , 89747 , 69262 , 388623 , 41478 , 3249014 , 6190562 , 59623219 , 27607905 , 462410633 , 311198803 , 4415585700 , 143339408
n×2
41609276
n×3
62413914
n×4
83218552
n×5
104023190
n÷2
10402319
n÷3
6934879.3333333
n÷3
5201159.5
n÷5
4160927.6
n2
432832962311044
n3
9.0049330953489E+21
n4
1.8734437326295E+29
n5
3.8976318670726E+36
2 √n
4561.2101464414
3 √n
275.03421282329
4 √n
67.536731831215
5 √n
29.082519817057
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20804637
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20804638 can be divided by 4 positive divisors.
The sum of these divisors (counting 20804638) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111010000011110
3
Ternary
1110010222121011
4
Quaternary
1033113100132
5
Quinary
20311222023
6
Senary
2021525434
8
Octal
117272036
10
Decimal
20804638
12
Duodecimal
6b7387a
16
Hexadecimal
13d741e
20
Vigesimal
6a0bbi
36
Base36
cdwym
md5
2f9128bd2520de5ede1191a502fcc0e3
sha1
3000cfa81baf8135dd4125b6aaf6b2472dfaf90c
sha256
4da41d90211af73d1322e3988587b2a42959b8c4b47b65e99a08f423dbbfde66
sha512
e7210459aee251cf3dbd59756224777c327fa22a7df82112623f3020a56ff298c09ef3e72c34edc1bf05e885cfceddc89d0889234da8a5e79255cffa9e565ebc
ripemd-160
6509f176e3505490b0cedc85174cad45e46b8c02
Diameter
41609276
Circumference
130719395.80279
Area
1.3597848546279E+15
Volume
3.7719775544554E+22
Surface area
5.4391394185115E+15
Circumference
130719395.80279
Perimeter
83218552
Area
432832962311044
Diagonal
29422201.219863
Surface area
2596997773866264
Volume
9.0049330953489E+21
Space diagonal
36034690.049078
Perimeter
62413914
Area
1.8742217047832E+14
Altitude
18017345.024539
Surface area
1.8742217047832E+14
Volume
1.0612415426421E+21
Height
9807400.4066209